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Simplify the helpers for classPrivateField{Get,Set} (#10117)

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No need to do the hash lookup twice. If the descriptor is not in the
WeakMap `get` returns `undefined`.
This commit is contained in:
Erik Arvidsson 2019-06-21 15:23:26 -07:00 committed by Nicolò Ribaudo
parent 11fa2461ce
commit 8f8a457798
1 changed files with 4 additions and 4 deletions
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8
packages/babel-helpers/src/helpers.js
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@ -1070,10 +1070,10 @@ helpers.classPrivateFieldLooseBase = helper("7.0.0-beta.0")`
helpers.classPrivateFieldGet = helper("7.0.0-beta.0")` helpers.classPrivateFieldGet = helper("7.0.0-beta.0")`
export default function _classPrivateFieldGet(receiver, privateMap) { export default function _classPrivateFieldGet(receiver, privateMap) {
if (!privateMap.has(receiver)) { var descriptor = privateMap.get(receiver);
if (!descriptor) {
throw new TypeError("attempted to get private field on non-instance"); throw new TypeError("attempted to get private field on non-instance");
} }
var descriptor = privateMap.get(receiver);
if (descriptor.get) { if (descriptor.get) {
return descriptor.get.call(receiver); return descriptor.get.call(receiver);
} }
@ -1083,10 +1083,10 @@ helpers.classPrivateFieldGet = helper("7.0.0-beta.0")`
helpers.classPrivateFieldSet = helper("7.0.0-beta.0")` helpers.classPrivateFieldSet = helper("7.0.0-beta.0")`
export default function _classPrivateFieldSet(receiver, privateMap, value) { export default function _classPrivateFieldSet(receiver, privateMap, value) {
if (!privateMap.has(receiver)) { var descriptor = privateMap.get(receiver);
if (!descriptor) {
throw new TypeError("attempted to set private field on non-instance"); throw new TypeError("attempted to set private field on non-instance");
} }
var descriptor = privateMap.get(receiver);
if (descriptor.set) { if (descriptor.set) {
descriptor.set.call(receiver, value); descriptor.set.call(receiver, value);
} else { } else {